19931899848 has 64 divisors (see below), whose sum is σ = 56978411520. Its totient is φ = 5691816000.

The previous prime is 19931899831. The next prime is 19931899901. The reversal of 19931899848 is 84899813991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297363 + ... + 358173.

It is an arithmetic number, because the mean of its divisors is an integer number (890287680).

Almost surely, 2^19931899848 is an apocalyptic number.

It is an amenable number.

19931899848 is an abundant number, since it is smaller than the sum of its proper divisors (37046511672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19931899848 is a wasteful number, since it uses less digits than its factorization.

19931899848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62778 (or 62774 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 69.

The spelling of 19931899848 in words is "nineteen billion, nine hundred thirty-one million, eight hundred ninety-nine thousand, eight hundred forty-eight".